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750Li

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Question
Car runs rough and shuts off - 1990 BMW 750iL
Without some additional symptoms, this is hard to say. If the car runs smoothly when warm, this would reflect a "cold start" problem with the engine. If the transmission shifts harshly either cold or hot, the transmission may need repair...
Question
Brake locking - 1990 BMW 750iL
Your vehicle uses a high-pressure hydraulic brake booster. It's likely that the pressure regulator sensors that provide the braking assistance are not functioning correctly, providing too much "braking assistance". A professional mechanic, like YourMechanic, can assist with diagnosis of your...
Question
Engine issues - 1991 BMW 750iL
Your engine has gone into "limp" mode. The engine computer senses that one side (or the other) is performing inadequately, which causes it to shut down that side. This is most commonly caused by fuel pump(s) failing. The fuel pump...
Question
leaking gas underneath. right where the transmission cover is. right at the very end bolt of the trans bolts rear bolts
Hello. A fuel leak from underneath the vehicle is probably going to be caused by a faulty fuel line. I would carefully examine all the fuel lines that run underneath the vehicle, placing extra attention on the ones that run...
Question
I want to change headlight to an adaptive LCD headlight from 2015 BMW 750i. Is it possible?
As with most modern cars, things are more complicated than they seem. The BMW uses a lamp control module to power up the lights. It's not a simple switch-load connection anymore. Among other functions, the lamp control module senses malfunctions...
Question
Had an oil Leak repaired. Then a tune up. Now there's a puddle leaking from my car. What happened?
The 750 is a great car, but when it gets some age and miles it can become pretty high maintenance. There is no way I can tell you what is leaking from here at my desk, the car will have...
Question
Idrive and TPI malfunction.
Hello. From what you describe it would appear that your vehicle is experiencing some sort of electrical issues. If the Idrive system is not working properly then it may be possible that the Idrive computer has failed, or possibly the...
Question
How much does it cost to replace the coolant lines and the upper/lower oil pan gasket?
Billing question sent to CS for the cost to replace the coolant hoses by the turbo and the engine oil pan gasket.
Question
Battery discharging while stopped, electrical devices were temporarily switched off.
The first thing to do with a draw is to check and make sure nothing is on that can be turned on by a human. Some common sources are interior lights, exterior lights, after market stereo systems or other after...
Question
Why does the the engine sound loud when you first start it up? Then it quiets, but as you drive you can still hear it on a Echo
Hi there. That is a very interesting situation you have with your BMW. To be honest, I've never seen tire valve stems cause any type of noise; especially under the conditions you're describing. It is possible that you may have...
Question
Hello Chris, Do you know how many Spark Plugs do I need to change on my 2008 BMW 750li?
This engine has eight cylinders with only one spark plug per cylinder. You have a total of eight spark plugs.
Question
Q: Tune-up
Hi there. Today's modern cars, trucks and SUV's are much more complex than older vehicles. As such, there really isn't a general "tune-up" service. Instead, manufacturers have created recommended maintenance service, which is unique for each make, model and year....
Question
My 2007 bmw 750li, makes noise when I'm not pressing in the gas. The car indicated oil level was ok. What could causing the noise
Hi there. It really depends on what type of noise you are hearing that will determine what is causing the noise. If it's a constant ticking noise, it's possible your serpentine belt or the pulleys that drive that belt are...
Question
Valve guide seals 2006 BMW 750i
Hello - unfortunately, this is not a service YourMechanic.com can offer at this time. Thanks for thinking of us though!
Question
Brake keep locking up while driving and coming to a stop and while in park.
The calipers could have a piston that is sticking or the combination valve on the brake system is sticking causing the brakes to be locking up after touching the brake pedal. I recommend seeking out a professional, such as one...
Question
I have a coolant leak...recently changed the expansion tank...now I have a leak right in front of the radiator 2008 BMW 750Li
Hello - there is an air bleed hose that runs across the top of the radiator (under a plastic cover) and into the expansion tank. There is a coolant level sensor, and a coolant transfer hose (expansion tank to the...
Question
Tried to charge a battery alarm goes off
This is a problem in the garage a lot. You connect a battery and the alarm sets, then the car goes into lockdown and you can't start it. Sometimes it takes some experimenting. I would start by charging the battery...
Question
2006 BMW 750LI no start code po335 I need pin point test and diagram please .thank you
To test the crankshaft position sensor (Sensor Circuit "A" in your case, if the code is P0335) the fault memory of the DME control unit is read and then the test schedules contained in the BMW diagnostic tool are followed....
Question
How many hours does it take to replace a 2006 BMW 750li transmission
It takes "roughly" 8 hours but if you have the Xdrive version, add 2 hours. The cost depends on exactly what you want. A new transmission? A used transmission? A rebuilt transmission? The recommended approach is to install a rebuilt...
Question
Q: Battery
Hi Maurice, Thank you for contacting YourMechanic. In regards of your question about battery programming, unfortunately we currently do not provide this service. We are very sorry for the inconvenience. Questions? Check out our FAQ page, call us at 1-800-701-6230...

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